Many ranchers prefer cattle without horns. The presence or absence of horns is genetically determined. The allele for the absence of horns (A) is dominant to the allele for the presence of horns (a).

A male with horns is mated with a heterozygous female without horns. What percentage of the offspring would be expected to have horns?

A. 25%

B. 50%

C. 75%

D. 100%

Question

Many ranchers prefer cattle without horns. The presence or absence of horns is genetically determined. The allele for the absence of horns (A) is dominant to the allele for the presence of horns (a).

A male with horns is mated with a heterozygous female without horns. What percentage of the offspring would be expected to have horns?

A. 25%

B. 50%

C. 75%

D. 100%

Anonymous · Answer

Well, that is 50%. Just do all 4 cases and you find that in 2 of them you get horns.

KatieOG · Answer

50%. You would set up a punnett square and find that the female would pass the dominant allele to 2 of 4 offspring.

Answer (2)

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